... for headphone with microphone 5 in 1 wireless headphone with microphone and FM radioModel number:T018Function ... ,PC,DVD,VCD,MP3/MP4 and CD player2.Wireless net chat It’s a perfect audio-chat ... tool, provides infinite enjoyment 3.Wireless Monitoring Place the emitter near baby, old people ... Mode:Mono4.Operation distance > 30meters(360 degree)5.Signal-to-Noise Radio>50db6.Distortion<2%THD7.Speaker: ...